kill two seals with one club
Accomplish two goals or achieve two ends with one action or plan.
She: The boss is incredibly efficient at organizing his time and conserving his energy.
He: Yeah! His secret is that he knows how to kill two seals with one club.
She: What???
He: You know, accomplish two things at once.
She: You're gross!
He: Thank you.
He: Yeah! His secret is that he knows how to kill two seals with one club.
She: What???
He: You know, accomplish two things at once.
She: You're gross!
He: Thank you.